w89c840af Winbond Electronics Corp America, w89c840af Datasheet - Page 79

• Manufacturer Part Number: w89c840af
• Description: 100/10mbps Ethernet Controller
• Manufacturer: Winbond Electronics Corp America

Serial EEPROM Timing
BootROM/Flash Interface Read Cycle Timing (Byte mode)
Read Cycle Timing (Double Word mode)
Symbol
TRC
TACS
TCES
TAD
TDH
TCEH
TDLES
TDLEH LE enable high time
SYMBOL
T1
T2
T3
T4
T5
T6
T7
T8
SYMBOL
TRC
TACS
TCES
TCEH
TDLES
TDLEH
Read Cycle Time
Address valid to CS# asserted
CE# valid to data valid
Address valid to data Valid
Data hold from address deasserted
Data hold from CE# deasserted
Data valid to LE enable
DESCRIPTION
EECS asserted to SK
EECS hold from SK
MSD2 OFF time
MSD2 ON time
MSD2 clock period
MSD1 set up time to MSD2 high
MSD1 hold time from MSD2 high
MSD0 valid from MSD2 high
DESCRIPTION
Read Cycle Time
Address valid to CS# asserted
CE# valid to Data valid
Data hold from CE# deasserted
Data valid to LE enable
LE enable high time
Parameters
-79 -
Publication Release Date:October 2000
Revision 1.01
MIN,
210
10
20
MIN
.
500
0
500
500
1
500
500
MIN.
0
0
0
-
-
210
10
20
0
0
-
MAX.
MAX.
500
600
600
1.2
600
600
300
210
210
MAX
5
210
-
-
-
-
-
5
-
-
-
-
W89C840AF
UNIT
nS
nS
nS
nS
uS
nS
nS
nS
UNIT
Unit
nS
nS
nS
nS
uS
nS
nS
nS
ns
ns
ns
ns
ns
ns